Compare Captopril vs. Lasix

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Capoten (Captopril)

Prescription only

Lasix (Furosemide)

Prescription only
Lowers blood pressure.

Captopril is a good blood pressure-lowering medicine that protects kidney function, but you have to take it on an empty stomach.

2.9/ 5 average rating with 106 reviewsforCaptopril
Lowers blood pressure. Removes extra water from your body.

Lasix (Furosemide) is a very effective water pill and it'll certainly make you go to the bathroom more often.

3.7/ 5 average rating with 371 reviewsforLasix
Upsides
  • A first-choice blood pressure treatment for many people.
  • Lowers the risk of heart attack and stroke.
  • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
  • Recommended for anyone with heart failure since it lowers the risk of death and further damage to your heart.
  • A strong diuretic (water pill) that works well to get rid of extra fluids in your body through urination.
  • Lowers your blood pressure and your risk of heart attack and stroke.
  • Works better than thiazide diuretics (like Hydrochlorothiazide) at removing harmful levels of certain electrolytes, such as potassium.
  • Okay to take if you have kidney problems.
Downsides
  • Up to 1 in 10 people can get a dry cough with this medicine. It ranges from a mild tickle in the throat to a persistent hacking cough.
  • Compared to other ACE inhibitors, less flexible on when and how you take it. Captopril needs to be taken multiple times a day on an empty stomach.
  • Requires a yearly blood test to see how the medicine is affecting your body.
  • Not safe to use if you're pregnant.
  • Makes you urinate very frequently.
  • Can cause low levels of important electrolytes, such as potassium.
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Used for
Dosage forms
  • Pill
  • Pill
  • Liquid
Price
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Reviews
106 reviews so far
34%
saidit'sworth it
25%
saiditworked well
25%
saidit'sa big hassle

Have you used Capoten (Captopril)?

Leave a review
371 reviews so far
67%
saidit'sworth it
47%
saiditworked well
16%
saidit'sa big hassle

Have you used Lasix (Furosemide)?

Leave a review
Side effects
5possible side effects
  • Rash
    7%
  • Flushing
    5%
  • Dysgeusia
    4%
  • Pruritus
    2%
  • Cough
    2%
See more detailed side effects
The Lasix (Furosemide) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Harm to fetus
    • Women of childbearing age
  • Cough
  • Unusual tongue swelling
    • African descent
  • Heart problems due to high potassium
    • Current kidney problems
    • Medicine that increase potassium
    • Use of salt substitute
See more detailed risks and warnings
  • Dehydration and electrolyte imbalance
    • Current electrolyte imbalance
  • Severe allergic reactions
    • History of sulfa allergies
  • Hearing problems
    • Current kidney problems
    • Dose too high
    • Low blood protein
    • Other medicines that causes hearing problems
See more detailed risks and warnings